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Can scrapy be used to scrape dynamic content from websites that are using AJAX?
...om scrapy.contrib.linkextractors.sgml import SgmlLinkExtractor
from scrapy.selector import HtmlXPathSelector
from scrapy.http import Request
from selenium import selenium
class SeleniumSpider(CrawlSpider):
name = "SeleniumSpider"
start_urls = ["http://www.domain.com"]
rules = (
...
How can Xml Documentation for Web Api include documentation from beyond the main project?
...c. Add the following method below the constructor:
private XPathNavigator SelectSingleNode(string selectExpression)
{
foreach (var navigator in _documentNavigators)
{
var propertyNode = navigator.SelectSingleNode(selectExpression);
if (propertyNode != null)
retur...
Algorithm for classifying words for hangman difficulty levels as “Easy”,“Medium”, or “Hard”
...ermine the "difficulty" of a word for a hangman game, so that the game can select words to match a specified difficulty level?
...
When to use Preorder, Postorder, and Inorder Binary Search Tree Traversal strategies
... Pre-Order, In-order or Post-Order?
The traversal strategy the programmer selects depends on the specific needs of the algorithm being designed. The goal is speed, so pick the strategy that brings you the nodes you require the fastest.
If you know you need to explore the roots before inspecting ...
Can PostgreSQL index array columns?
... for this test...
SET enable_seqscan TO off;
EXPLAIN ANALYZE
SELECT * FROM "Test" WHERE "Column1" @> ARRAY[20];
Result:
Bitmap Heap Scan on "Test" (cost=4.26..8.27 rows=1 width=32) (actual time=0.014..0.015 rows=2 loops=1)
Recheck Cond: ("Column1" @> '{20}'::integer[])
-&...
How to find time complexity of an algorithm
...on is proportional to the square of the input size.
Examples:
Bubble Sort
Selection Sort
Insertion Sort
7. Some Useful links
Big-O Misconceptions
Determining The Complexity Of Algorithm
Big O Cheat Sheet
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jQuery - checkbox enable/disable
...roup1"><br>
</form>
You can do this using attribute selectors without introducing the ID and classes but it's slower and (imho) harder to read.
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How to wait for all goroutines to finish without using time.Sleep?
This code selects all xml files in the same folder, as the invoked executable and asynchronously applies processing to each result in the callback method (in the example below, just the name of the file is printed out).
...
How to change fontFamily of TextView in Android
...ily in Android but I don't see any pre-defined fonts in Android. How do I select one of the pre-defined ones? I don't really need to define my own TypeFace but all I need is something different from what it shows right now.
...
Git Symlinks in Windows
... which finds all of the symlinks throughout the repository, as before) for selectively transforming git symlinks into NTFS hardlinks+junctions.
The checkout-symlinks alias has also been updated to accept multiple arguments (or none at all, == everything) for selective reversal of the aforementioned ...